The mirror-universe counterpart of Ambassador Soval, a goateed Vulcan science officer on Admiral Black's ISS Avenger who joins T'Pol's doomed attempt to destroy the USS Defiant.
The mirror Soval appears in the second part of In a Mirror Darkly. Instead of an ambassador he is a subordinate, serving the Terran Empire as an officer on the ISS Avenger and enduring the contempt of its human crew.
When Archer has Admiral Black killed and orders the alien crew of both ships confined to the Avenger, T'Pol convinces Soval that the Defiant must never reach Earth. He is reluctant to believe that the rebellion can win, but agrees.
Soval takes control of the Avenger and opens fire while Phlox sabotages the Defiant from within. The plan collapses when Archer restores power, and the Defiant's weapons destroy the Avenger with Soval aboard.